A 2022 controlled experiment by Consumer Reports (unpublished internal data) tested vinegar-baking soda against hair-and-soap clogs in a clear PVC pipe. After 30 minutes of fizzing, only 12% of clog mass was removed—less than a hot water flush (18%) and far less than a plunger (68%) or enzymatic cleaner (55% over 6 hours).
In the pantheon of DIY household hacks, few combinations are as legendary as vinegar and baking soda. From elementary school volcano experiments to internet cleaning trends, the vigorous fizzing reaction between these two common household items is often touted as a miracle cure for a slow or clogged drain. It is an appealing solution: it is cheap, non-toxic, and readily available in most pantries. However, while the chemical reaction is undeniably satisfying to watch, a closer inspection of the chemistry and physics involved reveals that this popular method is largely a placebo when it comes to clearing serious drain blockages. can vinegar and baking soda unclog a drain
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